fix(fs): address review — rename to dsh-fs-policy, fs/*-intent events, RFC currency, ENOTDIR
Rename per review naming decisions: - package dsh-file-context → dsh-fs-policy (dir, package name, plugin name, tsconfig refs, importers, type-equiv manifest, generated catalog + module-graph) - events fs/write-expectation → fs/write-intent, fs/edit-expectation → fs/edit-intent (fs/observed unchanged); type FsWriteExpectation → FsWriteIntent, "expectation" wording → "intent" throughout - exported FileContextExec → FsPolicyExec Make the implemented RFCs describe what shipped, not the superseded designs: the 2026-06-17 capability-seam + tool-schemas RFCs no longer place policy on ctx.fs or use full/partial-view authorization, and the fsspec RFC's ctx.fileContext service prose is rewritten to the fs/* event-gate reality (freshness-based auth). Sharpen docs/rfc/implemented/AGENTS.md: a rename is a fact to fix IN PLACE — the "new RFC" escape hatch is for macro decision reversals only, not renames. Code fixes from review: - fsio.ts resolveLocalTarget/probe translate ENOTDIR (a parent path segment is a file) into the structured FsError taxonomy instead of leaking a raw Node error; resolve reports FS_NOT_FOUND, probe reports absent. Regression tests proven to fail on the unfixed code. - tool-fs HMR test now asserts prompt sections (not just tool schemas) are withdrawn on disposal. - fs/observed is a plain (unguarded) ctx.emit: correct the fs-policy comment, filesystem.md, and tool-fs module doc that wrongly claimed the tool "contains" a throwing listener; a throw surfaces as the tool's isError result. - drop the false "loaded by the default product config" claim (no config wires the fs tools yet), the duplicate ctx.bash service-map row, the stale FileReadRequest catalog link-map entry, and the fs/fs README EOF blank line; correct the dsh-fs package.json description.
This commit is contained in:
@@ -0,0 +1,48 @@
|
||||
# @deepseek-ai/dsh-fs-policy
|
||||
|
||||
The **fs-policy plugin**: it adds observed-state, read-before-edit, and version-guarded write/edit on top of the `ctx.fs` provider seam ([`@deepseek-ai/dsh-fs`](../fs)) — through the `fs/*` event gate, **NOT** through a method service. This plugin registers **no** `ctx.fsPolicy` service and has no public `read`/`write`/`edit`/`resolve` methods. It is the policy third of the filesystem stack: not a swappable seam, but the policy that does not belong on the `FileSystem` provider base class.
|
||||
|
||||
```ts
|
||||
import type { Context } from 'cordis'
|
||||
import * as FsPolicy from '@deepseek-ai/dsh-fs-policy'
|
||||
|
||||
declare const ctx: Context
|
||||
|
||||
// No service to inject — this plugin only registers the three fs/* listeners.
|
||||
// Load it alongside a ctx.fs provider (e.g. @deepseek-ai/dsh-fs-local) and the
|
||||
// @deepseek-ai/dsh-tool-fs tools; the tools dispatch the fs/* events this plugin
|
||||
// decides. Order does not matter for resolution (no inject), but the policy
|
||||
// listener should be the first decider registered for the fs/*-intent slots.
|
||||
await ctx.plugin(FsPolicy)
|
||||
```
|
||||
|
||||
## The four-layer split
|
||||
|
||||
| Layer | Package | Role |
|
||||
|---|---|---|
|
||||
| tool / executor | `@deepseek-ai/dsh-tool-fs` | model-facing schemas + read windowing + text rendering; reads/writes/edits via `ctx.fs`, dispatches the `fs/*` events |
|
||||
| policy | `@deepseek-ai/dsh-fs-policy` (this) | observed-state + read-before-edit + version-guarded write/edit, contributed through the `fs/*` event gate (no service) |
|
||||
| provider seam | `@deepseek-ai/dsh-fs` | `ctx.fs`: text IO + atomic mutation primitives (optional version guard); owns the `fs/*` event vocabulary |
|
||||
| provider | `@deepseek-ai/dsh-fs-local` | local implementation of `ctx.fs` |
|
||||
|
||||
## How the gate participates
|
||||
|
||||
Three `fs/*` events (declared by `@deepseek-ai/dsh-fs`, dispatched by `@deepseek-ai/dsh-tool-fs`):
|
||||
|
||||
| Event | This plugin's listener |
|
||||
|---|---|
|
||||
| `fs/write-intent` | No prior observation → `{ kind: 'createIfAbsent' }`; a prior observation → `{ kind: 'replaceIfVersion', version: vObserved }`. Single-slot decision; does NOT call `next()`. |
|
||||
| `fs/edit-intent` | Requires a prior observation by this owner (else throws `FS_NOT_OBSERVED`); returns `{ version: vObserved }` as the CAS basis. Single-slot decision; does NOT call `next()`. |
|
||||
| `fs/observed` | Records `{ version }` for this owner+target. Synchronous, side-effect-only `WeakMap.set`. |
|
||||
|
||||
## Observed state is the prior-observation record; freshness is provider CAS
|
||||
|
||||
Observed state is a `WeakMap<owner, Map<targetKey, FsVersion>>`. An entry exists **iff** the owner has read, written, OR edited that target (every success emits `fs/observed`), so its presence is the prior-observation record — there is no `hasRead` flag and no `full`/`partial` view. This plugin does **no** filesystem I/O: "have you observed this file?" is a `WeakMap` lookup, and "is the version you read still current?" is decided inside `ctx.fs.editText`/`writeText` in the same atomic lock that performs the mutation — this plugin only supplies `vObserved` as the basis. A windowed read of lines 100-150 records the file's version, and a later edit of line 120 is authorized as long as the file is unchanged. State is held weakly and dropped on disposal (HMR safety); persistence across sessions is deferred.
|
||||
|
||||
## Single-slot, first-wins
|
||||
|
||||
The `fs/write-intent`/`fs/edit-intent` slots hold exactly one decider — this plugin fully decides and does not call `next()`. The slot is first-wins by registration order; this plugin owning it is the default-deployment convention, not an event-enforced invariant (a decider registered before / `prepend`ed would win instead). This is not a composable authorization chain — layered permission/audit/sandbox interception belongs on `tools/execute`.
|
||||
|
||||
## No method coupling
|
||||
|
||||
Because the plugin influences the world only through events, removing it does not break `@deepseek-ai/dsh-tool-fs` at a service-injection boundary: the tool falls through to the bare `ctx.fs` provider (unconditional write/edit, no observed-state). Loading it back layers the policy on. That graceful add/remove is the whole point of the event gate over a mandatory method service.
|
||||
@@ -0,0 +1,33 @@
|
||||
{
|
||||
"name": "@deepseek-ai/dsh-fs-policy",
|
||||
"description": "File-context policy plugin for the DeepSeek Harness — observed-state, read-before-edit, and version-guarded write/edit added over the ctx.fs provider seam through the fs/* event gate (no service surface)",
|
||||
"version": "0.0.1",
|
||||
"private": true,
|
||||
"type": "module",
|
||||
"main": "lib/index.js",
|
||||
"types": "lib/types/index.d.ts",
|
||||
"exports": {
|
||||
".": {
|
||||
"types": "./lib/types/index.d.ts",
|
||||
"default": "./lib/index.js"
|
||||
},
|
||||
"./src/*": "./src/*",
|
||||
"./package.json": "./package.json"
|
||||
},
|
||||
"files": [
|
||||
"lib/index.js",
|
||||
"lib/types/**/*.d.ts",
|
||||
"lib/types/**/*.d.ts.map",
|
||||
"src"
|
||||
],
|
||||
"license": "BSD-3-Clause",
|
||||
"peerDependencies": {
|
||||
"@deepseek-ai/dsh-fs": "^0.0.1",
|
||||
"cordis": "^4.0.0-rc.6"
|
||||
},
|
||||
"devDependencies": {
|
||||
"@deepseek-ai/dsh-fs": "workspace:^",
|
||||
"@deepseek-ai/dsh-llm": "workspace:^",
|
||||
"cordis": "^4.0.0-rc.6"
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,160 @@
|
||||
/**
|
||||
* The fs-policy PLUGIN: observed-state, read-before-edit, and
|
||||
* "write/edit must be based on the version you read" — added on top of the
|
||||
* `ctx.fs` provider seam through the `fs/*` event gate, NOT through a method
|
||||
* service. This plugin registers NO `ctx.fsPolicy` service and exposes no
|
||||
* `read`/`write`/`edit`/`resolve` methods; it influences the world only by
|
||||
* deciding the `fs/write-intent`/`fs/edit-intent` waterfalls and
|
||||
* recording on `fs/observed`. That is what keeps `@deepseek-ai/dsh-tool-fs`
|
||||
* (the executor) free of any method coupling to the policy layer — removing
|
||||
* this plugin gracefully loses the policy and leaves the unconstrained bare
|
||||
* provider, rather than breaking the tool at a service-injection boundary.
|
||||
*
|
||||
* ## Observed state IS the prior-observation record
|
||||
*
|
||||
* State lives here as `WeakMap<owner, Map<targetKey, { version }>>`. An entry
|
||||
* exists iff the owner has read, written, OR edited that target (every success
|
||||
* emits `fs/observed`), so its presence means "this owner has observed this
|
||||
* target at this version". This is what lets a create-then-edit or
|
||||
* edit-then-edit sequence work without an intervening re-read: the mutation
|
||||
* refreshes the recorded version to its own result. The owner is derived
|
||||
* structurally from `{ agent?: { session? } }` and held weakly, so a collected
|
||||
* session frees its state; disposal drops everything (HMR safety).
|
||||
*
|
||||
* ## Freshness via provider CAS, not stat
|
||||
*
|
||||
* This plugin does NO filesystem I/O. "Have you observed this file?" is a
|
||||
* `WeakMap` lookup (no record ⇒ `FS_NOT_OBSERVED`). "Is the version you read
|
||||
* still current?" is decided INSIDE `ctx.fs.editText`/`writeText`, in the same
|
||||
* atomic lock that performs the mutation — this plugin only supplies the
|
||||
* observed version as the CAS basis. Stat-ing and comparing here would open a
|
||||
* TOCTOU gap the provider lock has to back up anyway, so it is deliberately
|
||||
* avoided.
|
||||
*
|
||||
* ## Single-slot, first-wins
|
||||
*
|
||||
* The `fs/write-intent`/`fs/edit-intent` listeners do NOT call
|
||||
* `next()`: each fully decides its single slot. The slot is first-wins by
|
||||
* registration order — this plugin owning it is the default-deployment
|
||||
* convention, not an event-enforced invariant (a decider registered before /
|
||||
* `prepend`ed would win instead). This is not a composable authorization chain;
|
||||
* layered permission/audit/sandbox interception belongs on `tools/execute`.
|
||||
*
|
||||
* @module @deepseek-ai/dsh-fs-policy
|
||||
*/
|
||||
|
||||
import type { Context } from 'cordis'
|
||||
import { FsError } from '@deepseek-ai/dsh-fs'
|
||||
import type { FsTarget, FsVersion, FsWriteIntent } from '@deepseek-ai/dsh-fs'
|
||||
import type { FsPolicyExec } from './types.ts'
|
||||
|
||||
export type { FsPolicyExec } from './types.ts'
|
||||
|
||||
/**
|
||||
* Per-context observed-file state and the three `fs/*` decisions over it. One
|
||||
* instance is created per `apply()` so disposal can drop all state for HMR.
|
||||
*/
|
||||
class ObservedStateGate {
|
||||
/**
|
||||
* Observed-file state, keyed first by the owner object (weakly held, so a
|
||||
* collected session frees its state), then by {@link FsTarget.targetKey}. An
|
||||
* entry's PRESENCE is the prior-observation record.
|
||||
*/
|
||||
private observed = new WeakMap<object, Map<string, FsVersion>>()
|
||||
|
||||
/**
|
||||
* Derive the observed-state owner from the opaque event actor — normally the
|
||||
* active agent session. `undefined` when no owner can be derived (e.g. a
|
||||
* direct tool call with no agent); such calls read freely but cannot satisfy
|
||||
* the write/edit prior-observation policy.
|
||||
*/
|
||||
private owner(actor: object | undefined): object | undefined {
|
||||
return (actor as FsPolicyExec | undefined)?.agent?.session
|
||||
}
|
||||
|
||||
private get(owner: object, targetKey: string): FsVersion | undefined {
|
||||
return this.observed.get(owner)?.get(targetKey)
|
||||
}
|
||||
|
||||
private set(owner: object, targetKey: string, version: FsVersion): void {
|
||||
let byTarget = this.observed.get(owner)
|
||||
if (!byTarget) {
|
||||
byTarget = new Map()
|
||||
this.observed.set(owner, byTarget)
|
||||
}
|
||||
byTarget.set(targetKey, version)
|
||||
}
|
||||
|
||||
/** Drop all recorded state (HMR safety / disposal). */
|
||||
clear(): void {
|
||||
this.observed = new WeakMap()
|
||||
}
|
||||
|
||||
/**
|
||||
* Decide the write intent: no prior observation ⇒ `createIfAbsent` (only
|
||||
* new files can be created blindly); a prior observation ⇒ `replaceIfVersion`
|
||||
* at the observed version (existing files replaced only if unchanged).
|
||||
*/
|
||||
writeIntent(target: FsTarget, actor: object | undefined): FsWriteIntent {
|
||||
const owner = this.owner(actor)
|
||||
const prior = owner ? this.get(owner, target.targetKey) : undefined
|
||||
return prior ? { kind: 'replaceIfVersion', version: prior } : { kind: 'createIfAbsent' }
|
||||
}
|
||||
|
||||
/**
|
||||
* Decide the edit version guard: requires a prior observation by this owner
|
||||
* (else `FS_NOT_OBSERVED`); returns the observed version as the CAS basis.
|
||||
*/
|
||||
editIntent(target: FsTarget, actor: object | undefined): { version: FsVersion } {
|
||||
const owner = this.owner(actor)
|
||||
const prior = owner ? this.get(owner, target.targetKey) : undefined
|
||||
if (!owner || !prior) {
|
||||
throw new FsError(`edit requires reading "${target.displayPath}" first`, 'FS_NOT_OBSERVED')
|
||||
}
|
||||
return { version: prior }
|
||||
}
|
||||
|
||||
/** Record a successful read/write/edit: this owner observed this target at this version. */
|
||||
observe(target: FsTarget, version: FsVersion, actor: object | undefined): void {
|
||||
const owner = this.owner(actor)
|
||||
if (owner) this.set(owner, target.targetKey, version)
|
||||
}
|
||||
}
|
||||
|
||||
/** Cordis plugin name used by loader diagnostics. */
|
||||
export const name = 'fs-policy'
|
||||
|
||||
/**
|
||||
* Register the three `fs/*` listeners. No `inject` — this plugin reads no
|
||||
* services; it operates only on its own `WeakMap`. The waterfalls are unbound
|
||||
* (the tool dispatches them with no `this`), so the listeners take the raw
|
||||
* `(target, actor, next)` arguments.
|
||||
*/
|
||||
export function apply(ctx: Context): void {
|
||||
const gate = new ObservedStateGate()
|
||||
|
||||
ctx.effect(() => () => {
|
||||
// Drop all recorded state on disposal so a reloaded plugin starts clean
|
||||
// (HMR safety). The WeakMap itself would be GC'd, but replacing it makes the
|
||||
// release observable and immediate for tests.
|
||||
gate.clear()
|
||||
}, 'fs-policy observed-state teardown')
|
||||
|
||||
// fs/write-intent: occupy the single decision slot — do NOT call next().
|
||||
// Deferred through Promise.resolve().then so the declared Promise return type
|
||||
// holds (a throw rejects, never escapes synchronously through the waterfall).
|
||||
ctx.on('fs/write-intent', (target, actor) => Promise.resolve().then(() => gate.writeIntent(target, actor)))
|
||||
|
||||
// fs/edit-intent: occupy the single decision slot — do NOT call next().
|
||||
// Deferred the same way so an FS_NOT_OBSERVED throw becomes a rejected promise
|
||||
// the edit tool's `await ctx.waterfall(...)` surfaces as its isError result.
|
||||
ctx.on('fs/edit-intent', (target, actor) => Promise.resolve().then(() => gate.editIntent(target, actor)))
|
||||
|
||||
// fs/observed: synchronous, side-effect-only WeakMap write. The tool emits
|
||||
// this with a plain (unguarded) ctx.emit, so this listener MUST NOT throw —
|
||||
// a throw would surface as the tool's isError result for a mutation that
|
||||
// already succeeded. A WeakMap.set honors that contract.
|
||||
ctx.on('fs/observed', (target, version, actor) => {
|
||||
gate.observe(target, version, actor)
|
||||
})
|
||||
}
|
||||
@@ -0,0 +1,29 @@
|
||||
/**
|
||||
* Vocabulary for the fs-policy plugin: the minimal execution-context
|
||||
* shape used to derive an observed-state owner by narrowing the opaque `object`
|
||||
* actor the `fs/*` events carry.
|
||||
*
|
||||
* The provider vocabulary (`FsTarget`, `FsVersion`, write/edit shapes) is
|
||||
* re-used from `@deepseek-ai/dsh-fs`; this package owns only the observed-state
|
||||
* owner structure on top of it.
|
||||
*
|
||||
* @module @deepseek-ai/dsh-fs-policy/types
|
||||
*/
|
||||
|
||||
/**
|
||||
* Minimal structural view of a tool execution the policy plugin needs to derive
|
||||
* an observed-state owner. `@deepseek-ai/dsh-tools`' `ToolExecution` satisfies
|
||||
* this shape, so the tool passes its `exec` straight through as the opaque
|
||||
* `object` actor on the `fs/*` events; this plugin narrows that actor to this
|
||||
* shape without importing `dsh-tools`, `dsh-agent`, or `dsh-session`.
|
||||
*
|
||||
* The owner is `agent.session` when present. It is treated as an opaque object
|
||||
* identity (a `WeakMap` key); this package never reads any of its fields.
|
||||
*/
|
||||
export interface FsPolicyExec {
|
||||
/** The agent on whose behalf the call runs, when there is one. */
|
||||
agent?: {
|
||||
/** The session that owns observed-file state, used as an opaque key. */
|
||||
session?: object
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,192 @@
|
||||
/**
|
||||
* Tests for the fs-policy PLUGIN: it registers no service, only the
|
||||
* three `fs/*` listeners. We dispatch those events directly (the unbound
|
||||
* waterfalls the tool would dispatch, and the `fs/observed` emit) and assert the
|
||||
* decisions: createIfAbsent vs replaceIfVersion, FS_NOT_OBSERVED for an unread
|
||||
* edit, observed-state-as-prior-observation (read/write/edit all record),
|
||||
* multi-owner isolation, single-slot first-wins, and disposal/HMR release.
|
||||
*
|
||||
* No `ctx.fs` provider is needed — the plugin does no filesystem I/O; it only
|
||||
* decides intents and records versions on its own WeakMap.
|
||||
*/
|
||||
|
||||
import { describe, expect, it } from 'vitest'
|
||||
import { Context } from 'cordis'
|
||||
import { FsTargetKey, FsVersion } from '@deepseek-ai/dsh-fs'
|
||||
import type { FsTarget, FsWriteIntent } from '@deepseek-ai/dsh-fs'
|
||||
import * as FsPolicy from '@deepseek-ai/dsh-fs-policy'
|
||||
import type { FsPolicyExec } from '@deepseek-ai/dsh-fs-policy'
|
||||
|
||||
function target(path: string): FsTarget {
|
||||
return { inputPath: path, targetKey: FsTargetKey(path), displayPath: path }
|
||||
}
|
||||
const ownerExec = (session: object): FsPolicyExec => ({ agent: { session } })
|
||||
|
||||
/** Dispatch the write-intent waterfall with the bare default thunk. */
|
||||
function writeIntent(ctx: Context, t: FsTarget, actor: object | undefined): Promise<FsWriteIntent | undefined> {
|
||||
return ctx.waterfall('fs/write-intent', t, actor, () => undefined)
|
||||
}
|
||||
/** Dispatch the edit-intent waterfall with the bare default thunk. */
|
||||
function editIntent(ctx: Context, t: FsTarget, actor: object | undefined): Promise<{ version: FsVersion } | undefined> {
|
||||
return ctx.waterfall('fs/edit-intent', t, actor, () => undefined)
|
||||
}
|
||||
|
||||
async function setup() {
|
||||
const ctx = new Context()
|
||||
const fiber = await ctx.plugin(FsPolicy)
|
||||
return { ctx, fiber }
|
||||
}
|
||||
|
||||
describe('registration / disposal', () => {
|
||||
it('registers no service surface (it is a plugin, not ctx.fsPolicy)', async () => {
|
||||
const { ctx } = await setup()
|
||||
expect((ctx as Context & { fsPolicy?: unknown }).fsPolicy).toBeUndefined()
|
||||
})
|
||||
|
||||
it('mounts with no inject (reads no services)', async () => {
|
||||
// It mounts immediately even with nothing else in the context.
|
||||
const ctx = new Context()
|
||||
await ctx.plugin(FsPolicy)
|
||||
// The listener is live: an unobserved write decides createIfAbsent.
|
||||
expect(await writeIntent(ctx, target('a.txt'), undefined)).toEqual({ kind: 'createIfAbsent' })
|
||||
})
|
||||
})
|
||||
|
||||
describe('write-intent decision', () => {
|
||||
it('an unobserved target decides createIfAbsent', async () => {
|
||||
const { ctx } = await setup()
|
||||
expect(await writeIntent(ctx, target('a.txt'), ownerExec({}))).toEqual({ kind: 'createIfAbsent' })
|
||||
})
|
||||
|
||||
it('a no-owner actor decides createIfAbsent', async () => {
|
||||
const { ctx } = await setup()
|
||||
expect(await writeIntent(ctx, target('a.txt'), undefined)).toEqual({ kind: 'createIfAbsent' })
|
||||
expect(await writeIntent(ctx, target('a.txt'), {})).toEqual({ kind: 'createIfAbsent' })
|
||||
})
|
||||
|
||||
it('an observed target decides replaceIfVersion at the observed version', async () => {
|
||||
const { ctx } = await setup()
|
||||
const exec = ownerExec({})
|
||||
ctx.emit('fs/observed', target('a.txt'), FsVersion('v7'), exec)
|
||||
expect(await writeIntent(ctx, target('a.txt'), exec)).toEqual({ kind: 'replaceIfVersion', version: 'v7' })
|
||||
})
|
||||
})
|
||||
|
||||
describe('edit-intent decision', () => {
|
||||
it('rejects an unread edit with FS_NOT_OBSERVED', async () => {
|
||||
const { ctx } = await setup()
|
||||
await expect(editIntent(ctx, target('a.txt'), ownerExec({}))).rejects.toMatchObject({ code: 'FS_NOT_OBSERVED' })
|
||||
})
|
||||
|
||||
it('rejects an edit with no owner (cannot prove prior observation)', async () => {
|
||||
const { ctx } = await setup()
|
||||
await expect(editIntent(ctx, target('a.txt'), undefined)).rejects.toMatchObject({ code: 'FS_NOT_OBSERVED' })
|
||||
})
|
||||
|
||||
it('returns the observed version as the CAS basis after an observation', async () => {
|
||||
const { ctx } = await setup()
|
||||
const exec = ownerExec({})
|
||||
ctx.emit('fs/observed', target('a.txt'), FsVersion('v3'), exec)
|
||||
expect(await editIntent(ctx, target('a.txt'), exec)).toEqual({ version: 'v3' })
|
||||
})
|
||||
})
|
||||
|
||||
describe('observed-state is the prior-observation record', () => {
|
||||
it('a read observation authorizes an in-place write at that version', async () => {
|
||||
const { ctx } = await setup()
|
||||
const exec = ownerExec({})
|
||||
ctx.emit('fs/observed', target('a.txt'), FsVersion('v0'), exec) // a read
|
||||
expect(await writeIntent(ctx, target('a.txt'), exec)).toEqual({ kind: 'replaceIfVersion', version: 'v0' })
|
||||
})
|
||||
|
||||
it('a write/edit observation refreshes the basis, so the next edit needs no re-read', async () => {
|
||||
const { ctx } = await setup()
|
||||
const exec = ownerExec({})
|
||||
// A create records v1; the follow-up edit guards against v1 with no read.
|
||||
ctx.emit('fs/observed', target('a.txt'), FsVersion('v1'), exec)
|
||||
expect(await editIntent(ctx, target('a.txt'), exec)).toEqual({ version: 'v1' })
|
||||
// The edit records v2; a second edit guards against v2.
|
||||
ctx.emit('fs/observed', target('a.txt'), FsVersion('v2'), exec)
|
||||
expect(await editIntent(ctx, target('a.txt'), exec)).toEqual({ version: 'v2' })
|
||||
})
|
||||
|
||||
it('a no-owner observation records nothing', async () => {
|
||||
const { ctx } = await setup()
|
||||
ctx.emit('fs/observed', target('a.txt'), FsVersion('v0'), undefined)
|
||||
// Still unobserved for any owner.
|
||||
await expect(editIntent(ctx, target('a.txt'), ownerExec({}))).rejects.toMatchObject({ code: 'FS_NOT_OBSERVED' })
|
||||
})
|
||||
})
|
||||
|
||||
describe('multi-owner isolation', () => {
|
||||
it('owner A observing does not grant owner B edit authority', async () => {
|
||||
const { ctx } = await setup()
|
||||
const a = ownerExec({})
|
||||
const b = ownerExec({})
|
||||
ctx.emit('fs/observed', target('a.txt'), FsVersion('v0'), a)
|
||||
await expect(editIntent(ctx, target('a.txt'), b)).rejects.toMatchObject({ code: 'FS_NOT_OBSERVED' })
|
||||
expect(await editIntent(ctx, target('a.txt'), a)).toEqual({ version: 'v0' })
|
||||
})
|
||||
|
||||
it('each owner records its own observed version independently', async () => {
|
||||
const { ctx } = await setup()
|
||||
const a = ownerExec({})
|
||||
const b = ownerExec({})
|
||||
ctx.emit('fs/observed', target('a.txt'), FsVersion('v0'), a) // A observed v0
|
||||
// B never observed → createIfAbsent; A still holds v0 → replaceIfVersion.
|
||||
expect(await writeIntent(ctx, target('a.txt'), b)).toEqual({ kind: 'createIfAbsent' })
|
||||
expect(await writeIntent(ctx, target('a.txt'), a)).toEqual({ kind: 'replaceIfVersion', version: 'v0' })
|
||||
})
|
||||
})
|
||||
|
||||
describe('single-slot, first-wins', () => {
|
||||
it('fully decides the slot without calling next() (the bare default is unreached)', async () => {
|
||||
const { ctx } = await setup()
|
||||
let defaultRan = false
|
||||
const intent = await ctx.waterfall('fs/write-intent', target('a.txt'), ownerExec({}), () => {
|
||||
defaultRan = true
|
||||
return undefined
|
||||
})
|
||||
expect(intent).toEqual({ kind: 'createIfAbsent' })
|
||||
expect(defaultRan).toBe(false)
|
||||
})
|
||||
|
||||
it('a SECOND decider registered AFTER fs-policy is not reached (first-wins short-circuit)', async () => {
|
||||
const { ctx } = await setup()
|
||||
let secondRan = false
|
||||
// Registered after fs-policy, so it dispatches second; fs-policy does
|
||||
// not call next(), so this never runs. (A decider registered BEFORE — or with
|
||||
// prepend — would instead win: first-wins is by convention, not enforced.)
|
||||
ctx.on('fs/edit-intent', () => {
|
||||
secondRan = true
|
||||
return Promise.resolve(undefined)
|
||||
})
|
||||
const exec = ownerExec({})
|
||||
ctx.emit('fs/observed', target('a.txt'), FsVersion('v0'), exec)
|
||||
await editIntent(ctx, target('a.txt'), exec)
|
||||
expect(secondRan).toBe(false)
|
||||
})
|
||||
})
|
||||
|
||||
describe('disposal releases recorded state (HMR safety)', () => {
|
||||
it('a fresh plugin after disposal starts with no inherited state', async () => {
|
||||
const ctx = new Context()
|
||||
const exec = ownerExec({})
|
||||
const fiber = await ctx.plugin(FsPolicy)
|
||||
ctx.emit('fs/observed', target('a.txt'), FsVersion('v0'), exec)
|
||||
expect(await editIntent(ctx, target('a.txt'), exec)).toEqual({ version: 'v0' })
|
||||
await fiber.dispose()
|
||||
|
||||
await ctx.plugin(FsPolicy)
|
||||
// Same owner object, but state was released on disposal.
|
||||
await expect(editIntent(ctx, target('a.txt'), exec)).rejects.toMatchObject({ code: 'FS_NOT_OBSERVED' })
|
||||
})
|
||||
|
||||
it('no listeners remain after disposal (the gate no longer decides)', async () => {
|
||||
const ctx = new Context()
|
||||
const fiber = await ctx.plugin(FsPolicy)
|
||||
await fiber.dispose()
|
||||
// With no listener, the waterfall falls through to the bare default.
|
||||
expect(await writeIntent(ctx, target('a.txt'), ownerExec({}))).toBeUndefined()
|
||||
})
|
||||
})
|
||||
@@ -0,0 +1,14 @@
|
||||
{
|
||||
"extends": "../../../tsconfig.base.json",
|
||||
"compilerOptions": {
|
||||
"rootDir": "src",
|
||||
"outDir": "lib/types"
|
||||
},
|
||||
"include": ["src"],
|
||||
"references": [
|
||||
{ "path": "../../../vendor/cosmokit" },
|
||||
{ "path": "../../../vendor/cordis" },
|
||||
{ "path": "../../llm/llm" },
|
||||
{ "path": "../fs" }
|
||||
]
|
||||
}
|
||||
Reference in New Issue
Block a user